Updated: Aug 18, 2026
Location and Projects
Address
31 Water St, Groton, CT, 06355
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Greython Construction Photos
Greython Construction
Greython Construction is an award-winning construction management and general contracting firm recognized for quality, attention to detail, and client service. We turn our clients' visions into reality through expert planning, craftsmanship, and execution. With offices in Mystic, Connecticut; St. Louis, Missouri; Carlsbad, California; San Juan, Puerto Rico; St. Thomas, USVI; Soufrière, St. Lucia; Freeport, Grand Bahama;, Bangalore, India and Jarrow, UK, Greython serves clients throughout the United States and internationally. Our experience includes multifamily residential, hospitality, hotel, restaurant, industrial, and commercial construction, along with renovations, construction management, and ground-up development projects.
From BuildZoom: Greython Construction, 31 Water St, Groton, CT (Owned by: Acme Construction Specialties) holds a Mechanical Corporation license and 12 other licenses according to the Connecticut license board.
Their BuildZoom score of 102 ranks in the top 11% of 12,093 Connecticut licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Greython Construction, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Greython Construction Services
Start a project today:
Custom Home Build
New Home Construction
Medium Multi-Family New Con...
Other Residential New Const...
Multi-Room Remodel
Kitchen Remodel
Bathroom Remodel
Basement Remodel
Other Residential Remodel
Seismic Retrofit
Restaurant New Construction
Retail New Construction
Office Building New Constru...
Industrial New Construction
Hotel New Construction
Warehouse New Construction
Other Commercial New Constr...
Small Multi-Family New Cons...
Small Multi-Family Remodel ...
Whole Home Remodel
Modular Home Construction
Large Multi-Family New Cons...
Attic Remodel
Single Room Remodel
Cosmetic Remodel
Healthcare Facility New Con...
Greython Construction Contact Information
Phone Number: (860) 571-4600
Address: 31 Water St, Groton, CT 06355
Building Permits by Greython Construction
This is a sample of this contractor's permits. Click here to access their complete permit history.
Conversion of eight floors from hotel to residential units: floors 10 11 12 14 15 16 17 & 18 with 12 units each floor for a total of 96 apartments
Valuation:
$5,250,000
Permit #:
COM-NEW-20-150471
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Conversion of eight floors from hotel to residential units
Valuation:
$5,250,000
Permit #:
COM-NEW-20-150446
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Conversion of eight floors from hotel to residential units
Valuation:
$5,250,000
Permit #:
COM-ALT-17-158762
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Requesting a floor by floor certificate
Valuation:
N/A
Permit #:
COM-NEW-20-150447
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Requesting a floor by floor co
Valuation:
N/A
Permit #:
COM-NEW-20-150453
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Requesting a floor by floor co
Valuation:
N/A
Permit #:
COM-NEW-20-150452
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Requesting a floor by floor co
Valuation:
N/A
Permit #:
COM-NEW-20-150451
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Requesting a floor by floor co
Valuation:
N/A
Permit #:
COM-NEW-20-150450
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Requesting a floor by floor co
Valuation:
N/A
Permit #:
COM-NEW-20-150449
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Requesting a floor by floor co
Valuation:
N/A
Permit #:
COM-NEW-20-150448
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Requesting a floor by floor certificate
Valuation:
N/A
Permit #:
COM-ALT-19-159658
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Requesting a floor by floor co
Valuation:
N/A
Permit #:
COM-ALT-19-159664
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Requesting a floor by floor co
Valuation:
N/A
Permit #:
COM-ALT-19-159663
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Requesting a floor by floor co
Valuation:
N/A
Permit #:
COM-ALT-19-159662
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Requesting a floor by floor co
Valuation:
N/A
Permit #:
COM-ALT-19-159661
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Requesting a floor by floor co
Valuation:
N/A
Permit #:
COM-ALT-19-159660
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Requesting a floor by floor co
Valuation:
N/A
Permit #:
COM-ALT-19-159659
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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Verified License
BuildZoom confirmed this contractor's license
Greython Construction License info
Verified License
| License # | MCO.0903375 |
| Status | Active |
| State | Connecticut |
| Type | Mechanical Corporation |
| Date Issued | 07-09-2026 |
- BuildZoom verified this license was active as of August 2026.
Verify this license's status for Greython Construction at the Connecticut Department of Consumer Protection.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 1032199 |
| Status | Active |
| State | California |
| Type | General Building |
- BuildZoom verified this license was active as of August 2026.
Verify this license's status for Greython Construction at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | NHC.0014207 |
| Status | Active |
| State | Connecticut |
| Type | New Home Contractor |
| Date Issued | 04-01-2026 |
- BuildZoom verified this license was active as of August 2026.
Verify this license's status for Greython Construction at the Connecticut Department of Consumer Protection.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | MCO.0903547 |
| Status | Active |
| State | Connecticut |
| Type | Mechanical Corporation |
| Date Issued | 07-01-2026 |
- BuildZoom verified this license was active as of August 2026.
Verify this license's status for Greython Construction at the Connecticut Department of Consumer Protection.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| Status | Active |
| State | Florida |
| Type | Construction Business Information |
- When BuildZoom last verified this license, it had an expiration date of December, 2025. Check the current license status of Greython Construction with the Florida Department of Business & Professional Regulation
This is a sample of licensing data; click here to access a complete history.
Inactive License
| Status | Inactive |
| City | City Of Chicago |
| Type | D $2,000,000 Project Ceiling |
- According to the City of Chicago Data Portal, the status of this license was at one point cancelled. However, this information may have changed.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 74878 |
| Status | Inactive |
| State | Louisiana |
| Type | Building Construction |
| Class | Commercial License |
- According to the Louisiana Licensing Board, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for Greython Construction at the Louisiana Licensing Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 39411 |
| Status | Inactive |
| State | Rhode Island |
| Type | Residential And Commercial Contractor |
- According to the State of Rhode Island Contractors' Registration and Licensing Board, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for Greython Construction at the State of Rhode Island Contractors' Registration and Licensing Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | HIC.0643599 |
| Status | Inactive |
| State | Connecticut |
| Type | Home Improvement Contractor |
- According to the Connecticut Department of Consumer Protection, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for Greython Construction at the Connecticut Department of Consumer Protection.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | NHC.0013942 |
| Status | Inactive |
| State | Connecticut |
| Type | New Home Contractor |
- According to the Connecticut Department of Consumer Protection, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for Greython Construction at the Connecticut Department of Consumer Protection.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 39410 |
| Status | Inactive |
| State | Rhode Island |
| Type | Residential And Commercial Contractor |
- According to the State of Rhode Island Contractors' Registration and Licensing Board, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for Greython Construction at the State of Rhode Island Contractors' Registration and Licensing Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 184901 |
| Status | Inactive |
| State | Massachusetts |
| Type | Home Improvement Contractor |
- According to the Mass.gov Consumer Affairs and Business Regulation, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for Greython Construction at the Mass.gov Consumer Affairs and Business Regulation.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 997485 |
| Status | Inactive |
| State | California |
| Type | General Building |
- According to the California Contractors State License Board, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for Greython Construction at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
102
BuildZoom Score
Insured
| Insurer | Hartford Fire Insurance Company |
| Insured up to | $1,000,000 |
Bonded
| Bonded Agent | Fidelity & Deposit Company Of Maryland |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | State Compensation Insurance Fund |
Greython Construction Employees
AS
Acme Construction Specialties
Owner
AK
Anna G Klewin
Responsible Person
AK
Anna Karin Klewin
Member
AK
Anna Klewin
KK
Kyle C Klewin
KK
Kyle Charles Klewin
Rmo / Ceo / Pres
KK
Kyle Klewin